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Forum Posts

mvmiller
by New Contributor III
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Workflow file arrival trigger - does it apply to overwritten files?

I am exploring the use of the "file arrival" trigger for a workflow for a use case I am working on.  I understand from the documentation that it checks every minute for new files in an external location, then initiates the workflow when it detects a ...

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Rajani
New Contributor III
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Hi @mvmiller The  "file arrival" trigger for a workflow considers the name of the file,when the same name file was overwritten the workflow didnt triggerred.hope I answered your question! 

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dollyb
by New Contributor III
  • 101 Views
  • 1 replies
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Differences between Spark SQL and Databricks

Hello,I'm using a local Docker Spark 3.5 runtime to test my Databricks Connect code. However I've come across a couple of cases where my code would work in one environment, but not the other.Concrete example, I'm reading data from BigQuery via spark....

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daniel_sahal
Honored Contributor III
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@dollyb That's because when you've added another dependency on Databricks, it doesn't really know which one it should use. By default it's using built-in com.google.cloud.spark.bigquery.BigQueryRelationProvider.What you can do is provide whole packag...

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HaripriyaP
by New Contributor
  • 54 Views
  • 1 replies
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Multiple Notebooks Migration from one workspace to another without using Git.

Hi all!I need to migrate multiple notebooks from one workspace to another. Is there any way to do it without using Git?Since Manual Import and Export is difficult to do for multiple notebooks and folders, need an alternate solution.Please reply as so...

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daniel_sahal
Honored Contributor III
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@HaripriyaP You can use databricks CLI to export and import notebooks from one workspace to another.CLI Documentation here:https://github.com/databricks/cli/blob/main/docs/commands.md#databricks-workspace-export---export-a-workspace-object

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dashawn
by Visitor
  • 15 Views
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DLT Pipeline Error Handling

Hello all.We are a new team implementing DLT and have setup a number of tables in a pipeline loading from s3 with UC as the target. I'm noticing that if any of the 20 or so tables fail to load, the entire pipeline fails even when there are no depende...

Data Engineering
Delta Live Tables
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HaripriyaP
by New Contributor
  • 70 Views
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Multiple Tables Migration from one workspace to another.

Hi all!I need to copy multiple tables from one workspace to another with metadata information. Is there any way to do it?Please reply as soon as possible.

  • 70 Views
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shan_chandra
Honored Contributor III
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@HaripriyaP - Depends on your use case, Either of the below approach can be chosen. 1)  DELTA CLONE(DEEP CLONE) to clone them to the new workspace. 2) Have the same cluster policy/Instance profile of the old workspace to access them in the new worksp...

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bozhu
by Contributor
  • 925 Views
  • 4 replies
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Delta Live Tables Materialised View Column Comment Error

While materialised view doc says MVs support columns comments, this does not seem like the case for MVs created by DLT. For example, when trying to add a comment to a MV created by DLT, it errors:Any ideas on when this will be fixed/supported?

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bozhu
Contributor
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Just to close the loop here that it seems DLT generated MVs now support column comments.

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Chinu
by New Contributor III
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How do I access to DLT advanced configuration from python notebook?

Hi Team, Im trying to get DLT Advanced Configuration value from the python dlt notebook. For example, I set "something": "some path" in Advanced configuration in DLT and I want to get the value from my dlt notebook. I tried "dbutils.widgets.get("some...

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jose_gonzalez
Moderator
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The following docs will help. Please check the examples https://docs.databricks.com/en/delta-live-tables/settings.html#parameterize-pipelines

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jenshumrich
by New Contributor III
  • 64 Views
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Filter not using partition

I have the following code:spark.sparkContext.setCheckpointDir("dbfs:/mnt/lifestrategy-blob/checkpoints") result_df.repartitionByRange(200, "IdStation") result_df_checked = result_df.checkpoint(eager=True) unique_stations = result_df.select("IdStation...

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jose_gonzalez
Moderator
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Please check the physical query plan. Add .explain() API to your existing call and check the physical query plan for any filter push-down  values happening in your query.

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toolhater
by New Contributor II
  • 70 Views
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Installing dlt causing error

I'm trying to use the example in big book of engineering 2nd edition-final.pdf and I had an issue with the statementimport dltSo I created another cell and installed it and I noticed I was getting this error:"dataclass_transform() got an unexpected k...

  • 70 Views
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jose_gonzalez
Moderator
  • 0 kudos

could you get the full error stack trace please

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anish2102
by New Contributor
  • 84 Views
  • 1 replies
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Pyspark operations slowness in CLuster 14.3LTS as compared to 13.3 LTS

In my notebook, i am performing few join operations which are taking more than 30s in cluster 14.3 LTS where same operation is taking less than 4s in 13.3 LTS cluster. Can someone help me how can i optimize pyspark operations like joins and withColum...

Data Engineering
clustr-14.3
spark-3.5
  • 84 Views
  • 1 replies
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jose_gonzalez
Moderator
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check the physical query plan for both, DBR 14.3 and 13.3 to compare if these values are different. If they are, then check the Spark UI to identify where did it changed

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Karlo_Kotarac
by New Contributor II
  • 38 Views
  • 1 replies
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Run failed with error message ContextNotFound

Hi all!Recently we've been getting lots of these errors when running Databricks notebooks:At that time we observed DRIVER_NOT_RESPONDING (Driver is up but is not responsive, likely due to GC.) log on the single-user cluster we use.Previously when thi...

Karlo_Kotarac_0-1713422302017.png
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jose_gonzalez
Moderator
  • 0 kudos

are you able to get the full error stack trace from the driver's logs? 

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carlosancassani
by New Contributor III
  • 498 Views
  • 2 replies
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Update DeltaTable on column type ArrayType(): add element to array

Hi all,I need to perform an Update on a Delta Table adding elements to a column of ArrayType(StringType()) which is initialized empty.Before UpdateCol_1 StringType()Col_2 StringType()Col_3 ArrayType()ValVal[ ]After UpdateCol_1 StringType()Col_2 Strin...

Data Engineering
deltatable
Update
  • 498 Views
  • 2 replies
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Kaniz
Community Manager
  • 0 kudos

Hi @carlosancassani, It seems like you’re trying to append a string to an array column in a Delta table. The error you’re encountering is because you’re trying to assign a string value to an array column, which is not allowed due to type mismatch. To...

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yogu
by Honored Contributor III
  • 1715 Views
  • 8 replies
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Trying to claim reward points but its not reflecting my points

Hi Team,Can anyone help me why my reward point still showing 0 balance. My databricks community points is not reflecting on reward claim portal.i was login first time . Also I was wait for 3 business days but its still not reflecting

image
  • 1715 Views
  • 8 replies
  • 73 kudos
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Kaizen
Contributor III
  • 73 kudos

Can you also share the link for the reward points redemption?

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RakeshRakesh_De
by New Contributor III
  • 224 Views
  • 6 replies
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Spark CSV file read option to read blank/empty value from file as empty value only instead Null

Hi,I am trying to read one file which having some blank value in column and we know spark convert blank value to null value during reading, how to read blank/empty value as empty value ?? tried DBR 13.2,14.3I have tried all possible way but its not w...

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Data Engineering
csv
EmptyValue
FileRead
  • 224 Views
  • 6 replies
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RakeshRakesh_De
New Contributor III
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dont quote something from stackoverflow because those are old version in spark tried.. have you tried the thing on your own to verify if this really working or not in spark3??

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